A 0.1 kg mass is suspended from a wire of negligible mass

PHYSICS · Subjective · CBSE · Physics · Mechanical Properties of Solids · Mechanical Properties of Solids

Problem

A 0.1 kg mass is suspended from a wire of negligible mass. The length of the wire is 1m and its crosssectional area is

4.9 \times 10^{-7} \text{ m}^2

. If the mass is pulled a little in the vertically downward direction and released, it performs simple harmonic motion of angular frequency

140 \text{ rad s}^{-1}

. If the Young's modulus of the material of the wire is

n \times 10^9 \text{ Nm}^{-2}

, the value of

n

is [2010]